Koella



E. KOELLA TWISTER SPINDLE Aug. 5, 1952 Filed Aug. 19, 1949 2 SHEETS-SHEET l INVENTOR4 Ernesf Ko e// ATTORNEY A g- 5, 1952 E. Kor-:LLA l 2,605,602

I TWISTER SPINDLE Filed Aug. 19, 1949 2 SHEETS-SHEET 2 F/a. 5 t

INVENTOR.

BY @M @f-4d ATTORNEY lcally with respect Patented Aug. 5, 1.952

UNITEDw yS'I'AoI'lS PATENT OFFICE v 12,605,602 j l .',rWIsTER SPINDLE Ernest lnoella, Rockford, Tenn. Application August 19, 1949,`seria1`N0."11'1,'167' Y v vii'ive'ntionrelates .to 'improvements Vin twls erf spindlesof the character used for applyfing Ttwists to one or more yarns or strands,l and particularly relates to the'Z-for-l type of twister spindles. y v Y Y -2-for-'1 twister spindles generally,'as provided heretofore, haveinvolved astationary package or yarn Asupporti with a rotating flyer and spindle. OneV turn of twist'per'revolution is inserted in theyarn between the tension device and the flyer. A' second* turn 'pervrevolutionI is added between theA end of the iiyer and the take-up spool. f [t has Ybeen proposed heretofore tonuse permanent magnets to .h-oldgthe yarn carrier againstl revolvin'g-with the spindle but danger was encountered in the Ause of the magnets in the manner proposed because of l'a chance of explosion by reason of the` magnets releasing "their holding action. This explosion're'sults from the release 'ofthe-yarn carrier which normally is retained Ain asta'tionary position, which when released by themagnets would revolve with the main spindle and cause a dangerous wrecking of the equipment' due to the centrifugal force which would tear loose'the spools on the carrier and cause these to be propelled outwardlyvwith consequent destruction of the mechanism. Y

fOne object y of this invention isA to improve the construction of Z-for-l twister spindlesV oi thecharacter described; to eliminate the dicultiesfencountered heretofore, and to provide a safe andi effective operating equipment ythat will fprovide the desired twist to the yarn inthe operation of the spindle. ff A further' objectV of the invention is to provide an improved holding action'of the fixed magnets .on the yarn'ca-rrier which will retain the carrier effectively against rotation when desired or provide for rotation in the same or opposite direction from the driving spindle to Varythe number of twists imparted 'to the yarnl and the manner in which these are applied. These objects of the invention may be accomplished by mounting the yarn ycarrier coaxially of the main spindle and twisted headI with provision on the same axis for a magnetic attraction of the yarn carrier either to hold it in a fixed position with respect to the axis and against rotation, or to provide for rotation in the same or opposite direction relative to the main spindle as desired according to the number of twists to bey imparted to the yarn. By locating the magnets symmetrito the axis of the twister spindle and acting in a direction lengthwise of the axis the danger of explosion is minimized or elim- 12 Claims.

inated causing th =,'magnetsto actfeiectively without releasing'theirvhold "onI the yarn carrier in a more'practical and effective manner 'thanf if they were placed'at the periphery .ofv the twister spndl ,I y The invention is' illustrated in diier'ent'embodi'- ments in the laccompanying drawings 'in which: `lig. 1 is a vertical sectional view-'through the twister 'spindle utilizing the principle-"of"thisiin- Venon?. v .A i, .Y Fig .r2 is a` plan View of' the'g'uide ring 'and magnet holding means taken on the line 2*-l2 mma-1;. n. .y ,KVV ,..I '.1 ig. 3y is a horizontal sectionall view` therethrough ontheline 3'-3v in Fig. 1:; A I

Fig. 4 is a vertical sectional' view through'afpor- 'tionfof the spindle of 'modified construction" 'A fliig. 5 :is aplanviewfof the lower)io'rtion thereof on thelinf-E in Figll; rf f" irri" *figi is'fa botto'mplanyi'ew' 'of thefupperpornon tnereefntne'iinet-'sm Figi. f i The inventioiffis adaptedl for twisting 'any de!- siredusizeor character'of'yarn, of one".Y or more threads or strands, a'sthe yarn is withdrawn from a package Yand delivered'to a.' takel-u'p spoolq 'The twister spindle illustratedas an' embodiment lof this invention is adapted for' use ina twister ma'- chine of anydesired character onlyv a porti-on of whichuis shown in Fig. 1. y i 1 .A supporting frame on the machine isdes'igl nated generallybyv the numeral l in"wh'ichflis mounted' a lbearing'vlZ whichconstitutes astep- 'bearing for supporting tliereiriay main spindle3.

The Aspindle '3 extends downwardly thrugn: the step-bearing 2 andih'y 's afpulle'y il fixed Von'the `lower end portion thereof yin the form illustrated for operation by the",is ualfblt' r` band as-fde s'ired.V However, a 'driving motormay'lfbeconnected directlyf with the itubular y s pin'dle" 3 "if l The spindle 3 istubular at leastv in 'theupper portion therec'if with" a' central' passageway throughV whichfth'e yarn may pass'to ala'teral discharge4 opening 6 located 'within aregisteringr'adial open-ing inatwisterfh'ead 1. `Aradial tube lshown at 8 connected with the Vopening in vth'e""twistery h'eadV 1 in radialY alignmentwith thev opening '6.2' The tube 8"may be straight throughout `its. vlength or it" may have Aan upf turned outer lend portion as shown in Fig. w1-.

A :The yarnY carrier. is `designated. generally at;A 8 vandaincludesahub portion' 'l0 surrounding-,the axis'of the Yspir'idle l3 fon' whichit 'is mountedjon `spaced. ball'bearings'll iorrelative turning moyement with respect 'thereto..l

- thereof.

Supported upon the yarn carrier 9 at the axis thereof is a tubular member I2 in axial alignment with the spindle 3 forming a continuation The lower end of the tubular member I2 is fixed securely to the hub IIJ whereby this member is in fixed relation to the yarn carrier 9. Orifices I3` are formed in opposite sides 0f the tubular member I2, one for each strand of yarn to be fed to the spindle, through which orices th'fe strand-l oit-strands of"yarnldesign'ated generallat" Yenter`tli`e' tubulanmember I2' and pass into the center passageway of the spindie 3.

The yarn is supported on the usual yarn-spools `generally designated at I4, two of which vare shown in the example illustrated and-mounted symmetrically on the yarn carrie119,.being journaled on a central support I l5A tl'iereon.` Any' desired number of yarn supports may.l'eus'ed' f according to the numberfof strands to be twisted.

Also? mounted; onf the yarn. carrier 9? are eyes 'Ilia` one 1 for# each: strand, which yeyes I6 Vare Securedlin"upstanding.v sockets I-'I supported upon thefyarncarrier 9j andare: adapted tobe ad.- justably mounted Vin the sockets by setf screws I8" to'raise and lowerl the. eyes'withrespect tothe yr'n carrier. `'Als'omountedgon thenyarnA carrier 3 aretension: devices I9; one for eachstrandof yarn;-in the path of movement of the yarn from the eyes I6 to the adjacent orifice I3.` Each tensionv deviceisf'shown as supportedY on av bracket 2 TII. secured by a clamp 2| to the upper end.- portion of tlie socketl I.-.'I. 'I-'hetension devices will provide the required -yieldable tension: on tha yarn as itpa'ssesto the tubular spindle.;

'I'heyarng passes dow-n through.A the tubular 'member I2f-andA center-passage Stof the-spindle 3, thence out through the tube l8 and around the periphery of the yarn-carrier. 9,-. whichperiphery is convex to provide a smooth-guiding sur-face for the yarn. The yarn then passes up over a guide ring-22: mounted aboveA the yarn. carrier.. The guide' ring'22 is supported by radial. spokes 2-3'extending outwardly-from a. center .hub 24 thatis secured rigidly on the upper end portion ofv thetubular. member I2.. y i

Arranged in a-lignmentwithA the tubular member I2 is a second tubulary member or support also having a hub 26 mounted. onthe lower .end por'tion thereof in opposed..1 "elati`o'n`V to the hubxZ-'L The' tubular member- 25` receives the yarn inits-lower endA fromthe guide ringl22'f and directsrit; upwardly therefromA on to and over a guideroll 21 supported bythe frame-2liV ofthe machine',v 1 fromwhich guide. rol-L ZI thel yarn passes toa take-'up package. l

' Mountedgwithin the hubs ZL- and 26 are. opposed horse-shoe magnets 2-9 and 30 respectively, two of which are shown in each hub. These magnets 29 and. 3Il are arranged with. opposite poles in opposed relation so as normally to tend to attract each other and thereby hold the hubs -2-4' .and 26' together by th'e magnetic attraction. t'is preferred to use' an efii'cient magnetic materialforsuch magnets havi-ng afstrong magnetic attiarstion".- However, the number of lmagnets and the size thereof maybe varied as desired s' as to be effective for thev purpose.

The-tubular member- 25 may be held 'rigidly in-- the frame and against rotation if itbe desired, thereby' to hold the yarn` carrier 9 against rotation, Vor may be mounted for rotary movement either inthe sameor in the opposite direction to the tubular spindle 3' for varying the number f of twists imparted to the yarn. In the form shown the tubular member 25 is supported by bearings 3I and 32 on the frame 28 which journal this extension for turning movement. A pulley is shown at 33 fixed on the tubular member 25 for rotating the latter, although the pulley may be locked in set position to hold the tubular member against turning movement. This will eiect a holding action on the yarn carrier 9 by reason yof the connectiorntherebetweenthrough themagnets 29 and 30.V

By locating these magnets substantially on the center axis of the spindle the danger of explosionas a result of the operation of the spindle is minimized or eliminated and an eiTective holdinglaction.isaccomplished to provide the required twistingv of the. yarn.

One twistis imparted to the yarn in the tubular' portion of the spindle 3 between the tension device I9 and the radial discharge opening 6 while asecondtwist is imparted-.thereto asthe yarn. is.A dischargedv throughl the;` radial.. tube.4 8.. is. the. action obtained when. the tubular extension 215. -is held stationaryl withv the,..lya'rn carrier. Additional twists may be obtained if desired by rotating the yarn. carrier. in' theopposite directiontothe spindle-l l lAmodificationis illustrated inv.Figs'..4` and 6 in which. tubular spindle. portions I2a. and 25a are provided respectively with*4 hub. portions 24d and. 26a that have. aligned. channels` therein to receive .theV respective magnets 29a and 30a. These magnets are. arranged. in. crossed relation as shown` infri'gs, 5. andff Vto provideior. the use of.- four. 'magnets in eachholding.member. and thereby obtain. an. increased holding action. Otherwise. this structure operatessimilar to. that described. above.. y y j l In. thisf Way a very simpletwister` spindleV is D IOd-ued Which may bef manufactured and :used practically-` without serious` dangerv of 'explosion asy encountered heretofore. in twister spindles that `u semagnetic attraction. for holding. the ya-rn carrier. The fastening ofthe magnet direct. to

theI upper spindle and. its: extension racts as a magnetic coupling capable of.' being built: up in its magnetic capacityto have a high safety quo'- tient against explosions.

While the invention has been-,illustrated and described in certain embodiments; it is recognized that variations and changes maybe made-therein withoutv departing f-rom-V the? invention. except as specied inthe claims. I

I claim: 1 f 1. In a twister spindle,A the.v combination. o'f a tubular spindle V'having an inlet at oneportion thereof andan outlet at. anotherv portion thereof adapted? to'- receive yarn. therethrough, .a yarn carrier; means mounting rthe spindle and' yarn carrier for relative' turning moven'lent,` a tubular mem-ber fixed to the yarn carrier, a second tubular member in axial alignment with the tubular member, and magnets inopposed. relation and connected with said tubular members forming` a magnetic attraction therebetween.

2. Ina twister spindle; the combination of' a tubular spindle havingan inlet at oneportion thereof and an outlet at another portion. thereof adapted to receive yarn therethrough, a yarn carrier means mounting the spindle and' yarn carrier for relative Vturningmovement, a Inlbnlar member fixed to the' yarn Acarrier"substantially coaxial'ly of the tubular spindle, a tubular extension in longltudinal alignment with the tubular member, and means forming Va magneticv attraction betherefrom substantially in Aopening therein for the yarn,

tween the tubular member and the extension for holding the yarn carrier againstrotatlon with the tubular spindle. l

1 3.. In a twister spindle, 'the combination of a tubularspindle having an inlet at onefportion thereof 4and an outlet at another'portionN thereof adapted to receive yarn therethrough, a yarn carrier, means mounting the spindle and yarn carrier Y for relative'turning movement, a tubular member fixed to the yarn carrier and extending upwardly longitudinal alignment with the tubular spindle, a hub fixed on the upper end portion of said tubular member, a tubular extension mounted in the tubular member, a n tion of said tubular extension, magnets mounted in the hubs in opposed relation to each other in positions to form a magnetic coupling between the tubular member and the extension.

v4. In a twister spindle, the combination of a tubular spindle having an inlet at one portion thereof and an outlet at another portion thereof adapted to receive yarn therethrough, a yarn carrier, means mounting the spindle and yarn carrier for relative turning movement, a tubular member fixed to the yarn carrier and extending upwardly therefrom substantially in longitudinal alignment with the tubular spindle, a hub fixed on the upper end portion of said tubular member, a tubular extension mounted in longitudinal alignment with the tubular member, a hub on the lower end portion of said tubular extension, magnets mounted in to each other in positions to form a magnetic coupling between the tubular member and the extension, and means journaling the tubular extension for rotary movement.

5. In a twister spindle, the combination of a tubular spindle having an inlet at one portion thereof and an outlet at another portion thereof adapted to receive yarn therethrough, a yarn carrier, means mounting the spindle and yarn carrier for relative turning movement, a tubular member fixed to the yarn carrier and extending upwardly therefrom substantially in longitudinal alignment with the tubular spindle, a hub fixed on the upper end portion of said tubular member, a tubular extension mounted in longi-y tudinal alignment with the tubular member, a

hub on the lower end portion of said tubular extension, magnets mounted in the hubs in opposed relation to each other in positions to form a magnetic coupling between the tubular member and the extension, and means for guiding the yarn from the tubular spindle into the lower end of the tubular extension for upward passage therethrough. j

6. In a twister spindle, a tubular spindle having a passageway therethrough adapted to receive yarn in one portion thereof and to direct the yarn out of another portion thereof, a yarn carrier, means mounting the tubular spindle and yarn carrier for relative rotation, a tubular member secured to the yarn carrier in axial alignment with the tubular spindle and having an inlet package support means on the yarn carrier, an eye supported by the yarn carrier adapted to receive the yarn from the package, and a tension device supported by the yarn carrier between the eye and the inlet opening.

7. In a twister spindle, a tubular spindle having a passageway therethrough adapted to receive yarn in one portion thereof and to direct the yarn out of another portion thereof, a yarn carrier, means mounting the tubular spindle and longitudinal alignment with hub on the lower end poryarn carrier for relative rotation, a tubular member secured to the yarn carrier in axial alignment with the tubular spindle and having an inlet opening therein for` the yarn, package support means on the yarn carrier, an eye supported by the yarn carrier adapted to receive the yarn from the package, a tension device supported by the yarn carrier between the eye and the inlet opening, a socket mounted lon the yarn carrier, means adjustably supporting the eye in the socket, and 'means' mounting the tension device on the socket. 's

` v8. Ina rtwister spindle, a tubular spindle having a passageway therethrough adapted Ato receive yarn in one portion thereof and to direct the yarn out of another portion thereof, a yarn carrier adapted to support a package, means mounting the tubular spindle and yarn carrier the hubs in opposed relation v for relative rotation, an eye mounted on the yarn carrier adapted to receive the yarn from the package, a tension device supported by the yarn carrier between the eye and the tubular spindle, a socket mounted on the yarn carrier, means supporting the eye in the socket, and means mounting the tension device on the socket.

9. In a twister spindle, the combination of a tubular spindle having an inlet at one portion thereof and an outlet at another portion thereof adapted for passage of yarn therethrough, a yarn carrier, means mounting the spindle and yarn carrier for relative turning movement, a guide for the yarn spaced axially of the spindle from the outlet thereof, and means for holding the yarn carrier against rotation with the spindle including opposed magnets spaced from the spindle adjacent the opposite end thereof from the outlet.

10. In a twister spindle, the combination of a tubular spindle having an inlet at one portion thereof and an outlet at another portion thereof adapted for passage of yarn therethrough, a yarn carrier, means mounting the spindle and yarn carrier for relative turning movement, a guide for the yarn spaced axially of the spindle from the outlet thereof, and means for holding the yarn carrier against rotation with the spindle including opposed magnets spaced lengthwise of the spindle axis adjacent the opposite end of the spindle from the outlet.

l1. In a twister spindle, the combination of a tubular spindle having an inlet at one portion thereof and an outlet at another portion thereof adapted for passage of yarn therethrough, a yarn carrier, means mounting the spindle and yarn carrier for relative turning movement, a guide for the yarn spaced axially of the spindle from the outlet thereof, and means for holding the yarn carrier against rotation with the spindle including opposed magnets having poles symmetrically arranged on different sides of the spindle, said magnets being mounted adjacent the guide and spaced lengthwise at the opposite end of the spindle from said outlet.

12. In a twister spindle, the combination of a tubular spindle having an inlet at one portion thereof and an outlet at another portion thereof adapted for passage of yarn therethrough, a yarn carrier, means mounting the spindle and yarn carrier for coaxial turning movement relative to each other with the outlet of the spindle at one side of the yarn carrier, a guide for the yarn spaced axially of the spindle on the opposite side of the yarn carrier from the outlet, and means for holding the yarn carrier against rotation with the spindle including opposed magnets spaced ERNEST KOELLA.

REFERENCES CITED The follow-ing references are of record in, the. le of this patent:

UNTED STATES PATENTS Number VName. Date Norman Mar.,17l .1903 Hubbard Mar. 13, 1917 Holmberg Jan, 8, 1924 Werber Q May 29,1928

Number Number Name," v Date. Durand Apr. 14,1931 Poo1' Mar. 6, 1934 ASpagnolo Dec. 4, 1934 Stoddard Aug. 2, 1938 Smith Mar. 4, 1941 Burnham Nov. 12, 1946 Bartholomew Ju1y,20, 1948 Gwaltney June 21,1949 Roberts July 10,1951 FOREIGN PATENTS Country 4 4 Date Great Britain Sept. 8, 1947 

